Brake shoe



` April 9, l1946.

R. Bi PoGug-I BRAKE SHOE Filed may a. 1945 2 Sheets-sheet l1 25771'V Rverf P0 was@ ML April 9, '1946: RB. POGUE l .2,398,245

BRAKE sHoE Filed May s, 1943 2 sheets-sheet 2 By 'oerz Pague Patented Apr. 9, 1946 Robert B. Pogue, Orange,

N. J., assignor` to American Brake Shoe Company, a corporation of Delaware l Application May 8, 1943, Serial No. 486,141

(Cl. 18S- 258) 15 Claims.

This application is in part a continuation of my copending application Serial No, 481,536, led April 2, 1943, now abandoned.

This invention relates to brake shoes of the kind which have ductile metal reenforcements embedded in the cast bodies at the backs thereof.

The ductile metal reenforce that is embedded in the cast body of a brake shoe is intended to be effective to resist fracture of the cast body and, in the event'of fracture of the body, to prevent separation of the fractured parts of the body one from the other and the reenforce and also to resist straightening ofthe arcuate shoe when the wearing face thereof is heated in the course of use of the shoe and to enable these and kindred desiderata to be realized in a novel and effective manner is the primary object of the present invention.

It has been observed that if a ductile metal reenforce, commonly called a steel back, that is embedded in at thefback of a cast body of a brake shoe is provided with openings into which the body metal may ow during casting of the body and such openings are sized so as not to impair the innate strength of the reenforce back and the body is fractured in the course of use of the shoe, the edge portions of the openings' that are presentedto the portions of the metal body therein may be ofsuch restricted area that any relative movement which may arise between such portions of the body metal and such edges of the openings, which may accrue by reason of fracture of the body metal and the vibration to which the shoe is subjected in the use thereof, will effect comparatively rapid Wear of the edges of the openings particularly toward the adjacent end of the shoe. This may result in such enlargement of the openings in the ductile metal reenforce plate that the desired anchoring of the body metal therein can no longer be realized with the result that a fractured part of the body metal may separate from reenforce or plate and fall away from the shoe. It is, therefore, an important object of this invention to so locate, size and relate openings in a ductile metal reenforce for a brake shoe that the combined area of the edge portions of such openings that is presented tothe body metal therein will be such as to effectively resist wearing away of such edge portions in the event the body is fractured and when the shoe is subjected to'vibration in the course of use thereof. 1

Moreover, it has been found to be advantageous to reenforce va' kductile metal reenforcement or back` of the aforesaid character longitudinally thereof by affording a reenforcing panel on the reenforcement or plate substantially medially between the side marginal edges thereof. In those instances where such4 apanel has projected above the upper surface of the plate 'it' has been found that objectionable stresses may sometimes be set up, particularlyin' the event of fracture of the body metal, and these may result in such fracture of the plate or back that itis prevented from performing its intended function. Hence, it is another important object ofthis` invention to afford a unitary reenforci-ng panel on a ductile metal reenforcement or reenforce plate of the aforesaid character and yet `avoid setting up such stresses and strains that the ree'nforcement might ber fractured in course of the use of a shoe in which, it is included, and objects` ancillary to the foregoing are to aiord `a reenforcing panel on a reenforce or back` of the aforesaid character substantially medially betweenthe side marginal edges of the back and on the lower or inner surface thereof; to roll such a reenforcing panel on a reenforce plate; and to recess the upper surface of the plate so as to thereby facilitate rolling sucha reenforcng panel thereon.

While the primary stresses andstrains to which the brake shoe is subjected in the course Vvof use thereof, are impressed on the shoe longitudinally, which makes it important to prevent longitudinal separation between a' ductile metal reenforce or steel back and the cast body metal `of the shoe longitudinally thereof, it is also necessary to insure against separation of portions of the body metal one from the other and the back, in the event of fracture of the body metal, transversely of the shoe and back and to enable this to be realized in a novel and effective manner is yet another important object of this invention; and objects ancillary to the foregoing are to include depending flanges along the side marginal edges of a reenforce plate or back of the aforesaid character which will be eifec'tive to resist transverse separation of portions of the body metal onef-rom the other and from the reenforce plate or back in` theY event of fracture of the body metal; to afford openings in a reenforce plate or back of the aforesaid character in such locations that the openings will be effective to resist both longitudinal and transverse separation of portinsof the body metal one from the other and from the reenforce plate inV the event of fracture of the body metal; and to so relate depending anges along the side marginaledgeso'f a reenforce plate or back of the aforesaidV character and openings afforded in the back that separation of portions of the body metal one from the other and from the reenforce plate or back will be effectively resisted in the event of a fracture of the body metal in the course of the use of the shoe.

It is desirable that a reenforce plate orback of the character to which this invention pertains be effectively reenforced and while a reenforcing panel, such as that referred to hereinabove, enables such reenforcement to be afforded, I have found that the provision of depending side flanges, such as those described hereinabove, also effectively reenforce such a plate, particularly when such a panel and such reenforcing flanges are related one to another in substantially parallel but spaced apart relation and to so relate such a panel and such flanges is another object of this invention and another object, ancillary to the foregoing is to extend the flanges beyond the adjacent face of the plate for a distance differenty from the extent of the panel beyond such face whereby the free edges of the flanges, the face of the panel and the adjacent face of the plate are disposed in different and spaced apart planes for I have found that so to do affords appreciable reenforcement for the plate.

Moreover, by relating a reenforcing panel and side flanges one to the other in the just described marmer, I afford channels therebetween in which portions of the body may anchor and thereby an effective interconnection is afforded between the reenforcing plate and the body and so to do is yet another `object of this invention; and another object, related to the foregoing, is to afford openings in the back or plate in alignment with channels formed as aforesaid so that portions of the body may extend into such openings so as to thereby augment the aforesaid ef- `fective interconnection between the body and reenforce back.

A brake shoe customarily includes an attaching lug on the back substantially midway between the ends thereof and such an attaching lug'usually embodies a stra'p of ductile metal that is formed to aiord a keyway and it is customary during casting of the shoe to cause portions of the' body metal to flow about at least portions of such a strap so as to, among other things, prevent the ductile metal or steel strap from coming into contact with the head into which the attaching lug is fitted so as to thereby avoid objectionable wearingof the head. It is, of course, essential that the strap that is formed to afford a keyway `in the attaching lug to be firmly united with the ductile metal reenforce or steel back, and one way in which this has been accomplished heretofore has been to pass the free end portions of such a. strap through openings in the reenforce plate or back and to clench these end portions against the underside of the back so as to thereby retain shoulders formed on the strap in engagement with lthe upper surface of the reenforce plate or back. Heretofore, however,V arrangements of this character have been of such nature that some difficulty was sometimes encountered lin, causing the body metal to flow about the strap in the casting operation and it is therefore still another important object of this invention' to so attach a strap of the aforesaid character to a reenforce plate or back of the aforesaid character that a rm unionbetween the strap and back will be` realized and yet to insure that body metal will flow about the strap inthe course of the casting operation, and another object ancillary to the foregoing is to afford relatively enlarged openings in the ductile metal reenforce or steel back adjacent to the openings through which portions of the attaching strap are passed and through which relatively enlarged openingsbody metal may ow in the course of casting of the shoe so that the body metal provided about the attaching strap will be anchored to the main portion of the body metal of the shoe through therelatively enlarged openings in the back which are located adjacent to the attaching strap.

Other and further objects of the present invention will be apparentfrom the following description and claims and are illustrated in the accompanying drawings which, by way of illustration, showh preferred embodiments and the principle thereof and what I now consider to be the best 'mode' in which I have contemplated applying that principle. Other embodiments of the invention embodying the same or equivalent principles may be used and structural changes may be made as desired by those skilled in the art without departing from the present invention and the purview of the appended claims.

`In lthe drawings:

Fig. 1 is a side view, partly in elevation and partly in section, of a brake shoe embodying my invention; n

Fig. 2 is a plan view of the ductile metal reenforce that is embedded in the back of the shoe shown in Fig. 1, the body metal that is to be cast about such a reenforce being shown in broken lines Fig. 3 is a longitudinal sectional view taken substantially on the line 3-3 on Fig. 2;

Fig. 4 is a fragmentary plan view of the medial portion of the reenforce with the attaching lug strap shown in Fig. 2 removed;

Figs. 5 and 6 are transverse sectional views taken substantially and respectively on the lines 5-5 and 6-6 on Fig. 1;

p Figs. 7 and 8 are views respectively similar to Figs. 2 and 4 but showing a modified form of my invention; and

Figs. 9 and 10 are sectional views taken substantially and respectively on the lines 9-9 and l0-I0 on Fig. '7.

In the formV of my invention shown in Figs. 1 to 6, inclusive, of the accompanying drawings, the shoe there illustrated includes a body l preferably of cast iron, and, in accordance with well understood practices in the art, chilled sections are afforded in the body particularly at the ends and adjacent to the wearing face thereof and, if desired, an expanded metal or other reenforce` (not shown) may be included inthe'body 1. A ductile metal reenforce 8, commonly referred to as a steel back, is embedded in the back of the shoe at the face thereof opposite the wearing face, and this backis desirably so sized as to terminate in spaced relation with' opposite ends of the body l of the same shoe, the end portions of the back or reenforceplate 8 desirably being arranged'beneath the end stops Sprovided on the back of the shoe at the ends thereof asis customary in the art.v

My invention primarily has todo with the ductile metal reenforce or steel back as 8 and desirably such a back is hot-rolled to include a reenforcing panel I0, that is extended longitudinally substantially midway between the side marginal edges thereof.r FlangesV Il and I2 are-also rolled along th'e side marginal edges of the back. The reenforcing panel I0 and flanges Il and ll.V are formed on the` lower or inner side of the back 8 and the upper face offthe back is desirably'flat transversely thereacross, the back being curved longitudinally thereof, as best-shownin Fig. 1, so as to be complementary to the curved Wearing face I 3 of the shoe.

An attaching lug` I4 is provided onthe 'back of the shoe substantially medially between opposite ends thereof and this lug includes a. strap I5 that is bent to include two'upwardly or vertically extending andspaced apart arms and aninterconnecting section that extends between the upper ends of these arms in spaced relation with the upper surface of the back 8 when the strap I5 is mounted on the backg'whereby the strap, in cooperation with the adjacent portion of the back, defines a keyway through which a key mayu be passed to secure the shoe to -the head customarily afforded on railway equipment to receive the shoe. End portions or tongues I6 and I'I are provided at the lower ends of the vertically extending arms of the strap I5 and theseend portions are desirably narrower than the vertically extending arms so that shoulders as I 8, Fig. 3, are provided at the lower ends of the vertically extending arms of the strap.

Slots as I 9 and 20 are formed in theback or reenforce plate 8 substantially midway between the ends thereof and in such locations that adjacent edges of the slots are respectively aligned with opposite side marginal edges of the reenforclng panel I2, and relativelyenlarged openings `2| and 22 are formed in the back respectively between the reenforcing panel IB and the depending ilanges II and I2 and in such locations that the slots I9 and 20 respectively open thereinto. i

When the strap I5 is to be attached to the back8 the end portions or tongues I 6 and I'I thereof are respectively passed through the slots I3 and 2U and the shoulders I 8 are rested on the top of the back .B adjacent to these slots. best shown in Fig. 6, the tongues I6 and I 'I are folded toward each other and into engagement with the lower surface of the reenforcingpanel IB so as to thereby clench the strap I5 to the back or reenforce plate 8.

As has been explained hereinabove, it is desirable that openings be provided in a back as 8, into which the body metal may ow during casting of a shoe in which the back is to be included,`and that these openings are to be related one tothe other in such a way as to insure against excessive wear of the edges of these openings in the event of fracture of the body metal and when the shoe is subjected to vibration in the course` of use thereof. To this end openings 23 and 24 are provided in the back 8 adjacent to the ends thereof and between the depending side iiange I I and the adjacent edge of the reenforcing panel I Il, these openings desirably underlying'at least part of the end stops as 9 in the finished shoe. Similarly arranged and located openings 25 and 26 are provided in the back 8 between the' depending side flange I2 and the adjacent side edge of the reenforcing panel I0.

Additionally, at least two openings as 21 and 23 are formed in the back 8 between the depending side flange II and the adjacent edge of the reenforcing panel I0 and also between the openings 2I and 23. Desirably the openings as 2'1 and 28 are located on each side of a position substantially midway between the openings 2I and 23 for it has been found that openings so located, `in cooperation with a Side flange as II, effectively resist separation of portions of the body metal one from the other and from the back as 8 in the event of'fracture of the sh'oe. Another pair Then, as

of openings- 29 and-3U are 'formed in theback 8 betweenthe-side an'ge I-'I `and the adjacent mar.. gina'ledge of the panel'IIland these openings `29 and 3'lare relatedto each otherA and the openings 2|. and 24 in the same manner as that in which the oivening'sv 21-and 28 are related to each other and the openings 2| and 23. Another pair of openings 3l and 32are formed in theback 8 between the depending side flange I2 and the ad-` jacent margin of the reenforcing panel I0, and desirably these openings'are respectively transversely aligned with the openings 21 and 28.` Yet other openings 33 and 34 are formed in theback 8 between the side flange I2 and the adjacent side margin of the reenforcing panel I0 and desirably these openings are respectively transversely aligned with the openings 29 and 30.

A centeringtoe .as T is usually provided at each end of a shoe on the back thereof to extend inwardly from the adjacent end of the shoe medially between the side edges thereof,` and it has been found to be advantageous to effectively anchor such toes to the body metal 1j. To this end openings 35 and 36 are formed inthe back Sadjacent to the ends thereof and respectively between the openings as 23 and 25'and 24 and 25, the openings 35 and 36 being desirably elongated 1ongitudinally of the back 8 vso as to underlie substantially all of the toes as T; this having been found to be eiective to reenforce'endstops `as 9.- A shoe such as that illustrated in the accompanying drawings is customarily cast ina suitablemold and prior to the time' the molten iron is poured intdthe mold the" back or reeniorce plate as 8 with thestrap as I5 attached thereto is lixed in the mold lin the manner customary in the art as well as any expanded metal or other reen'force that is to be included in the cast body l of the shoe. Desirably, the back 8 and the strap I5 are coated with a suitable refractory material prior to the time they are introduced into the mold so as to prevent burning thereof by the molten metal when it isV poured into the mold, and as the molten metal flows into the mold it flows through the various openings provided in the back,`and in so far; as openings as 21 and 28 are concerned, thelbody metal is confined therein so as to be cast flush with the upper surface of the back Vas 8. However, in the course of the casting operation the molten metal will iiow out through the openings 2| and 22 to afford projections of body metal as 3'! about the upwardly extending portions or arms`of the strap as I5. Moreover, as best shown in Fig. 3, the molten metal will ow through openings as 26 (and 23, 24 and 25) to thereby reenforce the end stops 9, metal also owing through the openings 35 and 36 to reenforce the centering toes as T.

By reason of the fact that the cast portions as 3'I'about the vertically extending portions of the strap as I5 are eiectively anchored to the body metal of the shoe through openings as 2l and 22, these cast portions are retained in position"about these portions of the strap in the course of use of the shoe and hence these cast portions perform.. their intended function throughout the use of the shoe. Furthermore, because the portions as 37 are extended over the upper face of the back about the edges of the openingsZI and'22, the medial part of the body metal is eiectively anchored to the back and is prevented4 from separating from the back'in the event oftliractureof the `body metal in the course ofuseoftheshoe. l. t In this regard, however, the reenforcng panel from the back and each other.

- Yetfurther, the vcombined surface area of the edges of, and the relation among, openings as 2l, 28, 2l and 23 and openings as 22, 32, 3| and 25, in'cooperation with the area of the edge of an opening as 35, is such that there is such dis.. tribution of the vibratory effect, which arises in the event of fracture of the body metal and when the shoe is subjected to vibration in the course of usel thereof, that thevaforesaid edges of the openings do not so rapidly wear` away that such enlargement of these openings accrues as might result in loss of function with the result that the fractured parts of the body metal are effectively held in position, this desirable result accruing particularly longitudinally of the shoe.

Furthermore, in the event of fracture of the body metal, the extension of portions thereof into openings as 2l, 28, 27 andy 23 insures against .transverse separation of the fractured parts from the backand each other primarily because these openings are aligned with a channel defined between the adjacent edge of the panel as I and the adjacent flange as Il, the extension kof the body metal into this channelI affording a firm anchorage between the body metal and the back or reenforce plate. f l

Moreover, the extent of the flanges as Il and I2 beyond the adjacent face of the plate back is greater than the extent of the reenforcing panel as lil beyond such face and therefore the free edges of the lianges, the exposed face of the panel and the adjacent edge of the plate back lie in different and spaced planes. This has been found to effectivelyvreenforce the plate back so as to insure that this back will serve its intended function in the brake shoe in which it is included.

All of the foregoing advantages of Amy invention are also realized in form thereof shown in Figs. 7 to l0, inclusive.,v in the accompanying drawings where a back or reenforce plate 8a is.

illustrated. Since the back 8a and the shoein which it is included are like the back and shoe shown in Figs, l to 6, the same reference characters employed in Figs. 1 to 6 are applied to the corresponding elements in Figs. 7 to 10 except that the suffix a is added when these reference characters appear in Figs. 7 to 10. Moreover, the hereinabove set forth description of my invention with reference to Figs. 1 to 6 applies t0 the form of invention shown in Figs. 7 to 10 except insofar as certain features of the back or plate 3a, as now to be described, are concerned, f l

Thus the back 8a is hot rolled so as to be of substantially uniform thickness in cross section between the flanges l la. and I2av and to this end a channel or recess C is rolled into the upper surface of the back 8a. Therefore, the top of the back 8a, unlike the top of the back 8, is not flat transversely thereacross. Howevenas the channel C is rolled into the back 8a, a reenforc-l ing panel Illa is formed on the underside of this back and this panel, like the panel l0, reenforces Q the back, particularly in cooperation withV the @langes Ha andl2a. Moreover,` the side edges of the panel lai'are desirably beveled'to be complementary to the beveled side walls of the channel C. Likewise, the exposed edges of `the flanges Ila and |2a are tapered or inclined inwardly. The provision of the channel C and the tapering o fthe exposed edges of the flanges Ila and |2a as well as the beveling of the edges of the panel Illa facilitates the rolling of the back 8a. In all other respects the form of my invention shown in Figs. A 'I to 10 corresponds to that shown in Figsul toV 6. f v

A, ductile metal reenforce of the character hereinabove described enables the above set forth objects of this inventionto be realized and while I have illustrated and expressly described selected embodiments of my invention, it is to be understood that these are capable of variation and modification and I therefore do not wish to be limited to the precise details set forth but desire to avail myself of such changes and alterations as fall within the purview of the following claims.

VI claim:

1. A brake shoe having a body, a reenforce plate extended to the side edges of the body and anchored to thebody-at the back thereof, and a center attaching lug, said plate having flanges along opposite edges and extended beyond the inner face thereof and into the body at the sides of the body, said plate also having a reenforcing panel extended from end to end thereof and on the inner face thereof and disposed in spaced relation withvsaid flanges and extended into the body, .said flanges being extended into the body in an amount greater than the reinforcing panel to retain the body against transverse separation in the event of fracture of the body, said plate also having a continuous recess formed therein in alignment with said panel whereby said plate is of substantially uniform thickness between said i flanges.

2. A brake'shoe having a body, a reenforce plate extended to the side edges of the body and anchored to the body at the back thereof, and a center attaching lug, said plate having anges along opposite edges that are extended beyond the inner face thereof and into the body at the sides of the body, Said plate also having a reenforcing panelY on the inner face and extended from end to end thereof and disposed in spaced relation with said flanges whereby continuous channels are defined between said panel and said flanges, said reinforcing panel being extended into the body; said flanges being extended into the body in an `amount greater than the reinforcing panel to retain the body against transverse separation in the event of fracture of the body, and said plate having openings formed therein in alignment with said channels in which portions of the body are anchored.

3. A brake shoe having a body, a reenforce plate extended to the side edges of the body and anchored to the body at the back thereof, and a center attaching lug, said plate having flanges along opposite edges thereof anda reenforcing panel disposed between said iianges and extended from end to end of said back and into the body, the free edges ofsaid flanges, the exposed face of said panel and the adjacent face of said plate' being disposed in different and spaced apart planes to thereby effectively reenforce said e plate, said plate having a continuous recess formed therein in alignment with said panel whereby said plate is of substantially uniform thickness between said flanges, saidianges being extended into said body at the sides thereof and in an amount greater than that in which the panel is extended into the body to` thereby be effective to retain the; body against transverse separation inthe event of fracture of the body. 4. A brake shoe having a body, a reenforce plate anchored to the body at the back thereof, and a center attaching lug, said plate having a reenforcing panel on the inner face and substantially midway between opposite edges thereof, said plate having an opening therein substantially midway between other opposite edges thereof and on eachV side of said reenforcing panel, said attaching lug including a strap formed t provide a keyway and havingtongues formed thereon, said tongues being passed through said openings and folded over into said panel to secure said strap to said plate, and said plate having other and relatively enlarged openings therein respectively disposed adjacent to .the first named openings therein and through which portions of the body disposed about said strap are connected to the portion of the body of the shoe below said plate.

5. A bra-ke shoe having a body, a reenforce plate anchored to the body at the back thereof, and a center attaching lug, said plate having a reenforcing panel on the inner face and substantially midway between opposite edges thereof, said plate having an opening therein substantially midway between other opposite edges thereof and on each side of said reenforcing panel, said attaching lug including a strap formed to provide a keyway and having tongues formed thereon, said tongues being passed through said openings and folded over onto said panel to secure said strap to said plate, said plate having other openings therein respectively disposed to open into the first named openings whereby portions of the body extended through the rst named openings and about adjacent portions of said strap are anchored to the portion of the body of the shoe below said plate.

6. lA brake shoef having a body, a reenforce plate anchored to the body at the back thereof, and a center attaching lug, said plate having fianges along opposite edges and extended beyond the inner face thereof and also having a reenforcing panel on the inner face thereof disposed in spaced relation with said flanges whereby channels are dened between said panel and said flanges, said plate having an opening therein substantially midway between other opposite edges thereof and on each side of said panel and inwardly of the adjacent flange, said attaching lug including a strap formed to provide a keyway and having tongues formed thereon, said tongues' being passed through said openings and folded over onto said panel to secure said strap to said plate, and said plate having other and relatively enlarged openings therein respectively disposed adjacent to the first named openings and inwardly of the adjacent flange and through which portions of the body are extended to be disposed about adjacent portions of said strap. 'LA brake shoe having a body, a reenforce plate anchored to the body at the back thereof, and a center attaching lug, said plate having flanges along opposite edges and extended beyond the inner face thereof and also having a reenforcing panel on the inner face thereof disposed in spaced relation with said anges whereby channels are defined between said panel and said flanges, said plate having openings formed therein substantially midway between other opposite edges thereof and respectively aligned with said channels and including portions of restricted size, said attaching lug including a rstrap formed to provide a keyway and having tongues thereon that are respectively passed through the portions of restricted size of said openings and which are then folded over onto said panel to secure said strapto said plate, portions of 'said body being extended through said openings and being disposed about adjacent portions of said strap.

3. A brake shoe having a body, a reenforce plate anchored to the body at the back thereof, and a 'center attaching lug, said plate having flanges along opposite edges and extended beyond the inner face thereof and also having a reenforcing panel on the inner face thereof disposed in spaced relation with said flanges whereby channels are defined between said panel and said flanges, said plate having openings formed therein substantially midway between the opposite edges thereof and respectively aligned with said channels and including portions of restricted size, said attaching lug including a strap formed to provide a keyway and having tOllglleS thereon that are respectively passed through the portions of restricted size of said openings and which are then folded over onto said panel to secure said strap to said plate, portions of said body being extended through said openings and being disposed about adjacent portions of said strap, said plate having other openings formed therein adjacent to said other opposite edges thereof and respectively aligned with said channels and into which the body is extended to be anchored therein.

9. A brake shoe having a body, a reenforce plate anchored to the body at the back thereof, and a center attaching lug, said plate having flanges along opposite edges and extended beyond the inner face thereof and also having a reenforcing panel on the inner face thereof disposed in spaced relation with said flanges whereby channels are defined between said panel and said flanges, said plate having openings formed therein substantially midway between other opposite edges thereof and respectively aligned with said channels, said attaching lug including a strap formed to provide a keyway and having portions extended through said openings and folded onto said panel to secure said strap to said plate, and said plate having other openings formed therein adjacent to said other opposite edges thereof and respectively aligned with said channels and into which the body is extended to be anchored therein.

10. A brake shoe having a body, a reenforce plate anchored to the body at the back thereof, and a center attaching lug, said plate having flanges along opposite edges and extended beyond the inner face thereof and also having a reenforcing panel on the inner face thereof disposed in spaced relation with said flanges whereby channels are defined between said panel and said flanges, said plate having openings formed therein substantially midway between other opposite edges thereof and respectively aligned with said channels and including portions of restricted size, said attaching lug including a strap formed to provide a keyway and having tongues thereon that are respectively passed through the portions of restricted size of said openings and which are then folded over onto said panel to secure said strap to said plate, portions of said body being extended through said openings and being disposed about adjacent portions of said strap, said plate having other openings formed therein adj acent to said other opposite edges thereof and repectively aligned with said channels and into which the body is extended to be anchored therein, and said plate having other openings formed therein in alignment with said channels and respectively disposed between the openings midway between said other opposite edges thereof and the openings adjacent to said other opposite edges thereof, the body being extended into such openings to be anchored therein.

ll. A brake shoe having a body, a reenforce plate anchored to the body at the back thereof, and a center attaching lug, said plate having flanges along opposite edges and extended beyond the inner face thereof and also having a reenforcing panel on the inner face thereof disposed in spaced relation with said flanges whereby channels are defined between said panel and said flanges, said plate having openings formed therein substantially midway between other Lopposite edges thereof and respectively aligned with said channels, said attaching lug including a strap formed to provide a keyway and having portions extended through said openings and folded onto said panel to secure said strap to said plate, said plate having other openings formed therein adjacent to said other opposite edges thereof and respectively aligned with said channels and into which the body is extended to be anchored therein, and said plate having pairs of openings formed therein, each such pair of openings being aligned with one of said channels and being disposed between an opening located midway between said other opposite edges of the plate and an opening adjacent to one of said other opposite edges of the plate, the body being extended into such openingsr to be anchored therein.

12. A brake shoe having a body, an .elongated reenforce plate anchored to the body at the back thereof, and a center attaching lug, said plate having flanges along the side edges and extended beyond the inner face thereof and also having a reenforcing panel on the inner face thereof disposed in spaced relation with said flanges whereby channels are defined between said panel and said flanges, said plate having openings formed therein substantially midway between the ends thereof and respectively aligned with said channels, said attaching lug including a strap formed to provide a keyway and having portions extended through said openings and folded onto said panel to secure said strap to said plate, said plate having other openings formed therein adjacent to the ends thereof and respectively aligned with said channels and into which the body is extended to be anchored therein, said plate having pairs of openings formed therein, each such pair Alike embodying a concave-convex configuration between opposite end edges thereof, flanges along other opposite edges of said plate that are extended beyondk thefconcave face thereof, and a reenforcing panel vextended between said end edges on the concave face of said plate and spaced inwardly from said flanges whereby channels are defined on the concave face of said plate intermediate said panel and said flanges, the free edges of said flanges being disposed beyond the face of said panel kwhereby said flanges serve to retain the body ofa brake shoeI or the like in which the reenforce plate is incorporated against separation in the event of fracture of saidbody.

14. A reenforce plate for a brake shoe or the like embodying a concavo-convex configuration between opposite end edges thereof, flanges along other opposite edges of said plate that are extended beyond the concave face thereof, and a reenforcing panel extended from end to end on the concave face of said plate spaced inwardly from said flanges whereby channels are defined on the concave face of said plate intermediate said panel and said flanges, the free edges of said flanges, the face of said panel and the concave face of said plate transversely thereacross being disposed in different and spaced apart planes to thereby effectively reenforce said plate, the free edges of said flanges being disposed in a plane spaced from the concave face ofthe plate in an amount greater than is the pla-ne in which the face of said panel is disposed, whereby said flanges serve to retain the body of va brake shoe or the like in, which the reenforce plate is incorporated against separation in the event of fracture of said body.

15. A substantially rectangular reenforce plate for a brake shoe. or the like embodying a concavo-convex configuration longitudinally thereof, flanges along the side edges of said plate extended beyond the concave face thereof, and a reenforcing panel on the concave face of said plate spaced inwardly from said flanges whereby channels are defined on the concave face of said plate intermediate said panel and said flanges, said plate having substantially T-shaped openings formed v,therein substantially midway between the ends thereof and respectively aligned with said channels and having stem portions thereof extended toward each other. '1 

